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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2015, Volume 66, Issue 5,





IOANA STOICA, IONUT BANU, GRIGORE BOZGA
Modelling and Simulation of a Catalytic Fixed Beds Network
Operated in Forced Unsteady State Conditions

Abstract:

The work presents an analysis of a network of catalytic fixed beds operated in forced unsteady state regime by changing periodically the feed point. As a case study it is considered the process of waste gases decontamination by VOC combustion. The process is mathematically described by a heterogeneous one-dimensional model. The study reveals the existence of a tight interval of time durations between two successive feed point shifts, ensuring the stabilization of operation (quasi steady state regime). Among the working parameters, the strongest influences on process state and operation stability have the gas flow rate and feed composition. The study of temperature and conversion sensitivity in respect with model parameters evidenced the highest dependence in respect with solid-gas heat transfer coefficient and axial thermal conductivity of solid. Keywords: catalytic fixed bed, unsteady state, combustion, mathematical model, simulation


Issue: 2015, Volume 66, Issue 5
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